Mechanism for reducing data copying overhead in protected...

Details Mechanism for reducing data copying overhead in protected... Mechanism for reducing data copying overhead in protected...

G - Physics

06

F

G06F 12/14 (2006.01) G06F 13/12 (2006.01) H04Q 11/04 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2189617

A method and an apparatus for reducing data copying overhead associated with protected memory operating systems. In an ATM (Asynchronous Transfer Method) network, the present invention's NIC (network interface circuit) demultiplexes the information in the header of the incoming packet and routes the packet directly to its final destination using the present invention's concept of targeted buffer rings. Thus, instead of having the packet be DMA'd to a buffer in a descriptor ring in the kernel, it may be routed directly to the buffer ring of the destination process.

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